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CVE

CVE-2026-20818

Insertion of sensitive information into log file in Windows Kernel allows an unauthorized attacker to disclose informati

Insertion of sensitive information into log file in Windows Kernel allows an unauthorized attacker to disclose information locally.

MEDIUM · CVSS 6.2 EPSS 0.00056
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-532Insertion of Sensitive Information into Log File
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Affected Products & Versions

5
microsoft windows server 2016< 10.0.14393.8783
microsoft windows server 2019< 10.0.17763.8276
microsoft windows server 2022< 10.0.20348.4648
microsoft windows server 2022 23h2< 10.0.25398.2092
microsoft windows server 2025< 10.0.26100.7623
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Scoring & Timeline

6.2
MEDIUM · CVSS v3.1 · secure@microsoft.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD13 Jan 2026 · 06:16 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
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Vendor Advisories

1
msrcCVE-2026-20818Information Disclosure
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